| 234 Guelph | 532 Air Cadet Squadron |
| Emmanuel Christian High School | F.e. Madill Secondary School (FEMS) / individual |
| FE Madill | Georgian Bay Coyotes |
| Goderich | Hamilton Olympic Club |
| Invictus | Invictus Athletics |
| JD Hogarth | Kincardine District Secondary School |
| KWCHEA Eagles | Laurel Creek T.F.C |
| London Legion | London Western T.F.C |
| LPC Triathlon Club | Maximus Performance |
| Royal City Athletics Club | Sacred Heart - Walkerton |
| Saugeen Shores Track Club | Saugeen Track & Field Association |
| Saugeen Track and Field | Saugeen Track Club |
| SISU Throws Club | South Simcoe Dufferin T.F.C. |
| St. Anne's Catholic Hs - Clinton | Stratford Sabrecats Track Club |
| Unattached (UNA) | Unattached Ontario (UNON) |
| United Proactive Performance UPP | UPP |